Asymmetrical three-DOFs rotational-translational parallel-kinematics mechanisms based on lie group theory
Refaat, Sameh, Herve, Jacques M., Nahavandi, Saeid and Trinh, Hieu 2006, Asymmetrical three-DOFs rotational-translational parallel-kinematics mechanisms based on lie group theory, European journal of mechanics - A/Solids, vol. 25, no. 3, pp. 550-558, doi: 10.1016/j.euromechsol.2005.11.001.
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Asymmetrical three-DOFs rotational-translational parallel-kinematics mechanisms based on lie group theory
The paper introduces four families of three-DOFs translational-rotational Parallel-Kinematics Mechanisms (PKMs) as well as the mobility analysis of such families using Lie group theory. Two of these families are mechanisms with one-rotational two-translational degrees of freedom (DOFs) and each of the other two has one-translational two-rotational DOFs. Four novel mechanisms are presented and discussed as representatives of these four families. Although these mechanisms are asymmetric, the components used to realise them are very similar and, hence, there is no great departure from the favourable modularity of parallel-kinematics mechanisms.
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